User Guide

Flanged Valve Bodies

The VB-8223-0-5-P series flanged valve bodies conform to American Standard 125 psi Cast

Iron Pipe Flanges. The companion flanges (not provided) should be the same specification

as the valve. The 125 psi flanges have plain flat faces and should not be bolted to a raised

faced flange.

1. All parts should be clean to assure tight seals.

2. The pipe with the companion flanges installed should be properly supported and

aligned. Be sure the companion flange is flush with the face of the valve body flange

and lined up squarely.

3. Use a gasket material (not provided) that is recommended for the medium being

handled.

Caution: Do not apply pipe dope to the valve flange, gasket, or companion flange.

4. Figure-3 shows the proper way a flanged valve should be mounted. See Figure-6 for

flange and flange bolt details.

CHECKOUT

1. Make sure the valve stem operates smoothly before installing the valve linkage and the

actuator. Initial breakaway force can be expected.

2. If the stem does not operate smoothly, it may indicate that the valve stem was bent by

rough handling. These conditions may require valve replacement.

3. After the piping is under pressure, check the valve body and the connections for leaks.

4. After the valve linkage and the actuator are installed, check their operation.

Valve Body

Gasket*

Com

anio

Flan

*Not su

lied with valve

Bolt *

Nut *

Figure-3 Installation of Flanged End Valves